<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8" />
		<meta name="viewport" content="width=device-width, initial-scale=1">
		<title>web</title>
		<style type="text/css">
			.box{
				width: 300px;
				height: 0;
				padding-bottom: 100px;
				overflow: hidden;
				background: red;
			}
		</style>
	</head>
	<body>
		<div class="box">内容移出二</div>
		
	</body>
</html>